utils/src/ReadWholeFile.cpp

   1 #include <fcntl.h>
   2 #include "utils.h"
   3 #include "ScopeHelpers.h"
   4
   5 bool ReadWholeFile(const char *path, std::string &result, size_t limit)
   6 {
   7         FDScope fd(path, O_RDONLY);
   8         if (!fd.Valid())
   9                 return false;
  10
  11         for (;;) {
  12                 char buf[0x1000] = {};
  13                 ssize_t r = ReadAll(fd, buf, sizeof(buf));
  14                 if (r > 0) {
  15                         result.append(buf, r);
  16                         if (result.size() >= limit) {
  17                                 return true;
  18                         }
  19
  20                 } else if (r < 0 && result.empty()) {
  21                         return false;
  22
  23                 } else {
  24                         return true;
  25                 }
  26         }
  27 }